Shuttle box for drop box looms



Oct. 6, 1931. c. J. LINDEGRr-:N

SHUTTLE BOX FOR DROP BOX LOOMS Filed Aug. 10. 1929 2 Sheets-Sheet 1 Odi. 6; 1931. C, ,1 LlNDEGKREN 1,826,317

SHUTTLE B0XA FOR DROP BOX LOOMS Filed Aug. lO, 1929 2 Sheets-Sheet 2 (BFL J. //VDEG PEN 'ab Fig. 1;

Patented oef. 6, 1931 'Unir-ea STATES PATENT ori-ICE CARL J'. LCENDEGREN,` OF PROVIDENCE, RHODE ISLAND, ASSIGNORVTO CROMPTON &

vKNOWIIES LOOM WORKS, OF WORCESTER, MASSACHUSETTS, A CORPORATION OIE MASSACHUSETTS 1&0 Specific features of the invention and certain arrangements and combinations of partsy by whichthese results are attained will be hereinafter described and more particularly pointed out in' the appended claims. 15 A preferred form of the invention is shown in the drawings, in which Fig. 1 is a front elevation of portions of a loom embodying my improvements;

Fig. 2 is a plan view of the parts shown in Figs. 3 and 4 are sectional end elevations, taken along the lines 3-3 and 4-4 in Fig. 1;

Fig. 5 is an enlarged detail end elevation to be described;

Fig. 6 is a partial enlarged front elevation of certain parts;

Fig. 7 is a sectional plan View, taken along the line 7 7 in Fig. 6; v

Fig. 8 is a sectional end elevation, taken Si) along the line 8 -8 in Fig. 7;

Fig. 9 is a detail sectional plan view, taken along the line 9-9 in Fig. 4 enlarged;

Fig. 10 is a detail view to be described, and

Fig. 11 is a detail sectional plan view, taken 35 along the line 11-11 in Fig. 1. f

Referring to Figs. 1 and 2, I have shown portions of a lay 10 supported on swords 11 and having the usual lay end structure 12 in which a multiple shuttle box S is mounted for vertical sliding movement. The box S is shown as having four cells for the accommodation ot four different shuttles and is supported and moved vertically by a usual litter rod 14.

My improved shuttle box is preferably formed from a number of sheet steel elements secured together by welding or in some equivalent manner.

Plates 20, 21, 22, 23 and 24 form the bottoms and tops of the several shuttle cells,

SHUTTLE BOX FOR EROP BOX LOOMS Application filed August 10, 1929. Serial No. 384,821.

as clearly indicated in, Fig. 8. These plates 2O to 24 are provided with lugs 25 adapted to be inserted in openings in a front end plate and welded or otherwise secured therein.

The plates 2O to 24 also have otlset projecting portions 32 (Fig. 7) extending through slots in the plate 30 and provided with` lugs 33 extending through openings in a plate or bar 35 which constitutes a guard for the binders 40.

it their rear edges, thek plates 21, 22 and 23 are similarly provided with lugs 36 extending through back frame members 37 and through a back end plate 38 and preferably welded therein. The plates 21, 22 and 23 are also provided with additional projections 40'nl extending through spaced openings in the back frame members 37 (Fig. 9) along the length of the box and suitably secured therein.

At the back edge, the top plate 2O is provided with a downturned flange 20a, which in effect forms a back trame member for the top of the upper box, and the bottom 24 of the lowest box is similarly provided with an up-turned flange 24a. The ianges 2Oa and 24a are welded to the back end frame member 38.

The member 38 is folded back upon itself at its extreme end portion to form the thickened hollow end structure indicated at 44 in Fig. 7. This portion 44 slides in a vertical guideway in the lay end structure 12, as indicated in Fig. 2. y c

At their left hand ends, as viewed in Fig. 2, the plates 2O to 24 are provided with flanges 50 struck up from the surface of the in position by screws Gl and are firmly seated between adjacent lugs 58.

rIhe extreme end portion of the front end frame member 56 is reversely bent on itself, as indicated at ('32 in Figs. 10 and l1, to provide a reinforced projection adapted to slide in a groove in the lay end structure 12. The extreme end of the reversely bent portion is preferably offset and abutted against the end frame to provide a wedge-shaped section for said projection.

At their rear sides, the plates 2O to 24 are unsupported at their left hand ends except as they are re-enforced by the flanges a and 2a and by the back frame members 37.

In the operation of the leoni, the filling thread draws against the curved entrance portion 'YO (Fig. 7) of the front frame member and also against the bottom plate 21 to Q4 of the box in which the shuttle is received.

In order that the filling` may not be caught in any crack or groove between the bottom plate and the front frame member, I locate the projections 25 previously mentioned at the extreme front edge of the plates 2l to 24, so that the filling engages continuous surfaces only as it is drawn from the mouth of the shuttle box.

Having thus described my improved multiple shuttle box, it will be evident that the box herein shown is of very strong construction, firmly braced. and re-.enforced, and that the parts, while of light weight, are of increased strength and reliability. The construction herein shown permits a reduction in weight to ten to fifteen percent over the structure previously used, while at the same time increasing the strength.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims, but what I claim is 1. In a drop box loom, a multiple shuttle box comprising front and back end plates and a plurality of top and bottom plates, said end plates being provided with openings and said top and bottom plates being provided with projecting portions extending through said openings and rigidly secured therein, one of said front end plates being provided with additional openings and said top and bottom plates having additional portions projecting a substantial distance through said openings, and a flat bar in which said projecting` portions are secured, said fiat bar spaced from said end plate and forming a guard for the ends of a plurality of binders.

2. In a drop box loom, a multiple shuttle box comprising front and back end plates and a plurality of top and bottom plates, said plates being formed of sheet metal and each top and bottom plate having a portion in one end struck up from the continuous flat surface thereof to provide an integral bearing sleeve for a binder stud.

3. In a drop box loom, a multiple shuttle box comprising front and back end plates and a plurality of top and bottom plates, rigidly secured together, and certain of said end plates being reversely folded to provide guiding portions slidable in the lay end.

4. In a drop box loom, a multiple shuttle box comprisng front and back end plates and avplurality of top and bottom plates, rigidlv secured together, and certain of said end plates being reversely folded to provide guiding portions slidable in the lay end, the ends of the reversely bent portions being offset inwardly and abutted against said end plates to provide wedge-shaped sections for said guiding portions.

' 5. In a drop box loom, a multiple shuttle box comprising front and back end plates and a plurality of top and bottom plates, rigidly secured together, one of said front end plates having portions struck up out of the plane of said plate to provide offset spaced abutments eifective to position and confine the ends of binder springs associated therewith, and means to secure said springs to said end plate.

6. In a drop box loom, a multiple cell shuttle box having front and back end plates, intermediate cell-forming plates and top and bottom cell-forming plates rigidly secured to the end plates, said top and bottom plates having portions bent perpendicular to said top and bottom plates to form side flanges extending alongside and substantially across thel front face of one of said back plates and permanently secured thereto.

In testimony whereof I have hereunto affixed my signature.

CARL J. LINDEGREN. 

